DD267255A5 - Verfahren zur herstellung von verpastbaren vinylchlorid-polymerisaten durch kontinuierliche polymerisation in waessriger emulsion - Google Patents
Verfahren zur herstellung von verpastbaren vinylchlorid-polymerisaten durch kontinuierliche polymerisation in waessriger emulsion Download PDFInfo
- Publication number
- DD267255A5 DD267255A5 DD88312279A DD31227988A DD267255A5 DD 267255 A5 DD267255 A5 DD 267255A5 DD 88312279 A DD88312279 A DD 88312279A DD 31227988 A DD31227988 A DD 31227988A DD 267255 A5 DD267255 A5 DD 267255A5
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- vinyl chloride
- polymerization
- emulsifier
- dispersion
- alcohol
- Prior art date
Links
- 238000006116 polymerization reaction Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 27
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 239000000839 emulsion Substances 0.000 title claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 title description 4
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 25
- 230000008569 process Effects 0.000 claims abstract description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920000642 polymer Polymers 0.000 claims abstract description 8
- 238000002360 preparation method Methods 0.000 claims abstract description 3
- 239000000178 monomer Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 239000003054 catalyst Substances 0.000 claims description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 3
- 239000012874 anionic emulsifier Substances 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 abstract description 24
- 239000004800 polyvinyl chloride Substances 0.000 abstract description 24
- 239000006185 dispersion Substances 0.000 abstract description 18
- 150000001298 alcohols Chemical class 0.000 abstract description 7
- 230000002829 reductive effect Effects 0.000 abstract description 4
- 238000012674 dispersion polymerization Methods 0.000 abstract 1
- 239000006260 foam Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 239000000243 solution Substances 0.000 description 14
- 125000004432 carbon atom Chemical group C* 0.000 description 8
- -1 fatty alcohol sulfates Chemical class 0.000 description 8
- 150000002191 fatty alcohols Chemical class 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 6
- 239000012190 activator Substances 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000010924 continuous production Methods 0.000 description 4
- NOPFSRXAKWQILS-UHFFFAOYSA-N docosan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCCCCCO NOPFSRXAKWQILS-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 230000008719 thickening Effects 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 230000003081 coactivator Effects 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 3
- 230000036961 partial effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010626 work up procedure Methods 0.000 description 3
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 235000010323 ascorbic acid Nutrition 0.000 description 2
- 229960005070 ascorbic acid Drugs 0.000 description 2
- 239000011668 ascorbic acid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229960000735 docosanol Drugs 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- IRHTZOCLLONTOC-UHFFFAOYSA-N hexacosan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCO IRHTZOCLLONTOC-UHFFFAOYSA-N 0.000 description 2
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000001632 sodium acetate Substances 0.000 description 2
- 235000017281 sodium acetate Nutrition 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 description 1
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- RBACIKXCRWGCBB-UHFFFAOYSA-N 1,2-Epoxybutane Chemical compound CCC1CO1 RBACIKXCRWGCBB-UHFFFAOYSA-N 0.000 description 1
- KUWCMTFKTVOJID-UHFFFAOYSA-N 1,2-icosanediol Chemical compound CCCCCCCCCCCCCCCCCCC(O)CO KUWCMTFKTVOJID-UHFFFAOYSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- TWJNQYPJQDRXPH-UHFFFAOYSA-N 2-cyanobenzohydrazide Chemical compound NNC(=O)C1=CC=CC=C1C#N TWJNQYPJQDRXPH-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 235000021360 Myristic acid Nutrition 0.000 description 1
- TUNFSRHWOTWDNC-UHFFFAOYSA-N Myristic acid Natural products CCCCCCCCCCCCCC(O)=O TUNFSRHWOTWDNC-UHFFFAOYSA-N 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical class OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 1
- 238000006887 Ullmann reaction Methods 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical class C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 229960000541 cetyl alcohol Drugs 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229940055577 oleyl alcohol Drugs 0.000 description 1
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 235000015927 pasta Nutrition 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- 229940045845 sodium myristate Drugs 0.000 description 1
- 229940048086 sodium pyrophosphate Drugs 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 description 1
- JUQGWKYSEXPRGL-UHFFFAOYSA-M sodium;tetradecanoate Chemical compound [Na+].CCCCCCCCCCCCCC([O-])=O JUQGWKYSEXPRGL-UHFFFAOYSA-M 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 229940012831 stearyl alcohol Drugs 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
- D06H3/00—Inspecting textile materials
- D06H3/12—Detecting or automatically correcting errors in the position of weft threads in woven fabrics
- D06H3/125—Detecting errors in the position of weft threads
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F14/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F14/02—Monomers containing chlorine
- C08F14/04—Monomers containing two carbon atoms
- C08F14/06—Vinyl chloride
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Textile Engineering (AREA)
- Polymerisation Methods In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Treatment Of Fiber Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873701579 DE3701579A1 (de) | 1987-01-21 | 1987-01-21 | Verfahren zur herstellung von verpastbaren vinylchlorid-polymerisaten durch kontinuierliche polymerisation in waessriger emulsion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD267255A5 true DD267255A5 (de) | 1989-04-26 |
Family
ID=6319182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD88312279A DD267255A5 (de) | 1987-01-21 | 1988-01-18 | Verfahren zur herstellung von verpastbaren vinylchlorid-polymerisaten durch kontinuierliche polymerisation in waessriger emulsion |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4894891A (enrdf_load_stackoverflow) |
| CN (1) | CN1012680B (enrdf_load_stackoverflow) |
| AR (1) | AR243207A1 (enrdf_load_stackoverflow) |
| BG (1) | BG51253A3 (enrdf_load_stackoverflow) |
| DD (1) | DD267255A5 (enrdf_load_stackoverflow) |
| DE (1) | DE3701579A1 (enrdf_load_stackoverflow) |
| IT (1) | IT1211990B (enrdf_load_stackoverflow) |
| YU (1) | YU46246B (enrdf_load_stackoverflow) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5943746A (en) * | 1997-09-15 | 1999-08-31 | Jet Sew Technologies, Inc. | Method and apparatus for weft correction |
| AU2001297960A1 (en) * | 2000-12-05 | 2002-10-21 | Ambalux Corporation | Detection method and apparatus |
| US6776109B2 (en) | 2000-12-13 | 2004-08-17 | Columbia Insurance Company | Bow and skew control system and method |
| US8296911B1 (en) * | 2009-09-03 | 2012-10-30 | Highland Industries, Inc. | Shifted angle fabric |
| CN107987194A (zh) * | 2016-10-26 | 2018-05-04 | 上海天坛助剂有限公司 | 一种环保型聚氯乙烯糊状树脂生产用降粘剂及其制备方法 |
| EP3369788B1 (en) | 2017-03-03 | 2019-05-08 | Evonik Röhm GmbH | Curable thermosetting resin compositions with improved mechanical properties |
| EP3369787B1 (en) | 2017-03-03 | 2019-05-08 | Evonik Röhm GmbH | Curable (meth)acrylic resin compositions having enhanced viscosity |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE883351C (de) * | 1951-02-17 | 1953-07-16 | Hoechst Ag | Verfahren zur Herstellung perlfoermiger oder koerniger Polymerisationsprodukte |
| US2795029A (en) * | 1954-06-25 | 1957-06-11 | Robertson Co H H | Skew detecting method and apparatus |
| DE1077427B (de) * | 1956-12-12 | 1960-03-10 | Hoechst Ag | Verfahren zur Herstellung von stabilen Latices von Polymerisaten oder Mischpolymerisaten des Vinylchlorids |
| DE1109896B (de) * | 1958-06-12 | 1961-06-29 | Hoechst Ag | Verfahren zur Herstellung eines fuer die Bereitung von Plastisolen geeigneten Polyvinylchlorids |
| US3146511A (en) * | 1960-09-12 | 1964-09-01 | Frederick W Hoffman | Weft-straightening apparatus and method |
| NL302051A (enrdf_load_stackoverflow) * | 1963-01-24 | |||
| US3167843A (en) * | 1963-01-24 | 1965-02-02 | Mount Hope Machine Company Inc | Weft straightening apparatus |
| US3751774A (en) * | 1969-11-06 | 1973-08-14 | Mount Hope Machinery Ltd | Apparatus for correcting weft distortions in woven webs |
| BE758287A (fr) * | 1969-11-06 | 1971-04-01 | Mount Hope Machinery Ltd | Procede et appareil pour la correction des deformations de trame dans les tissus |
| BE795894A (fr) * | 1972-02-23 | 1973-06-18 | Huels Chemische Werke Ag | Procede de preparation d'homopolymeres ou copolymeres du chlorure de vinyle par polymerisation continue en emulsion |
| US3839767A (en) * | 1972-04-12 | 1974-10-08 | Coltron Ind | Apparatus for straightening fabric |
| DE3123658A1 (de) * | 1981-06-15 | 1982-12-30 | Basf Ag, 6700 Ludwigshafen | Verfahren zur kontinuierlichen polymerisation von vinylchlorid in emulsion |
| DE3133352A1 (de) * | 1981-08-22 | 1983-03-10 | Hoechst Ag, 6000 Frankfurt | Verfahren zur polymerisation von vinylchlorid in waessriger emulsion |
| US4517712A (en) * | 1982-03-15 | 1985-05-21 | Samcoe Holding Corporation | Method for automatically detecting and orienting the edge of a tubular knitted fabric |
| DE3210891A1 (de) * | 1982-03-25 | 1983-09-29 | Chemische Werke Hüls AG, 4370 Marl | Verfahren zur herstellung von verpastbaren polymeren des vinylchlorids |
| DE3242088A1 (de) * | 1982-11-13 | 1984-05-17 | Chemische Werke Hüls AG, 4370 Marl | Verfahren zur herstellung von verpastbaren polymeren des vinylchlorids |
-
1987
- 1987-01-21 DE DE19873701579 patent/DE3701579A1/de active Granted
- 1987-12-22 IT IT8748737A patent/IT1211990B/it active
-
1988
- 1988-01-12 AR AR88309821A patent/AR243207A1/es active
- 1988-01-13 BG BG082629A patent/BG51253A3/xx unknown
- 1988-01-18 YU YU7488A patent/YU46246B/sh unknown
- 1988-01-18 DD DD88312279A patent/DD267255A5/de unknown
- 1988-01-20 CN CN88100300.XA patent/CN1012680B/zh not_active Expired
- 1988-05-05 US US07/190,597 patent/US4894891A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US4894891A (en) | 1990-01-23 |
| YU46246B (sh) | 1993-05-28 |
| CN1012680B (zh) | 1991-05-29 |
| DE3701579A1 (de) | 1988-08-04 |
| YU7488A (en) | 1989-04-30 |
| AR243207A1 (es) | 1993-07-30 |
| BG51253A3 (en) | 1993-03-15 |
| IT8748737A0 (it) | 1987-12-22 |
| DE3701579C2 (enrdf_load_stackoverflow) | 1991-03-07 |
| CN88100300A (zh) | 1988-09-14 |
| IT1211990B (it) | 1989-11-08 |
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